Sheet-metal window



1930- i G. w. LANCASTER 1,743,783

SHEET METAL WINDOW Filed D60. 21, 1928 3 Sheets-Sheet 1 gnmntoz Gauge 1 F Lancas i er Jall- G. w. LANCASTER SHEET METAL WINDOW 3 Sheets-Sheet 2 Filed Dec. 21, 1928 law Gauge N La 11555 ZE'I' v I I 1 a 1M ip Jan. 14, 1930. w, LANCA TER 1,743,783

SHEET METAL WINDOW Filed Dec. 21. 19 28 asne is-sheet 5 glwuewtoz Eeazgie ELI-1710352 51 6% new Patented Jan. 14, 1930 UNITED STATES PATENT OFFICE SHEET-METAL WINDOW Application filed December 21, 1928. Serial No. 327,690.

This invention relates to sheet metal window frames in general, and more particularly to the stiles of such frames and the sash and parting beads secured thereto.

The main object of the invention is to provide a sheet metal window frame construction in which the elements forming the stiles can be stamped out in very few simple parts ada ted to be assembled or disassembled very rapldly and cheaply.

Another object of this invention is to provide a window jamb construction adapted to be very eco omically weatherstripped, either during the initial assembly of the several parts or after such assembly.

A further object of this invention is to provide a construction whereby window frames of this type may be readily secured in a finished window opening, without mar- 2 ring the jambs of such opening.'

Other objects of the invention will become apparent as the detailed description thereof proceeds.

In the drawin s:

Fig. 1 is a bro en-horizontal cross-section of a window frame embodying this invention and fixed between opposed walls of a window opening;

Fig. 2 is a broken horizontal section through the bead of the window frame taken immediately above a roller shade rotatably mounted in said bead; v

Fig. 3 is a fragmentary .vertical section taken on the line 3-3 of Fig. 2; p

Fig. 4 is a fragmentary exploded perspective of theelements forming a hollow stile of this window frame construction;

Fig. 5 is a perspective view of a pulley sheave used in this construction;

Fig. 6 is a fragmentary elevation of an adjustable wedge plate used'to secure a window frame in position between finished window jambs;

Fig. 7 is a broken perspective of said wedge plate;

Fig. 8 is a broken horizontal section through a modified form of window frame embodying the present invention;

Fig. 9 is a fragmentary perspective view of a box casing forming the weight receiving compartment for the sashes slidably mounted in the window frame; I

Fig. 10 is a fragmentary perspective of the outer sash bead;

Fig. 11 is a fragmentary perspective of the inner sash bead and Fig. 12 is a fragmentary perspective of a parting bead plate combined with a spring Weatherstrip plate.

In Figs. 1 to 4 of the drawing there is illustrated a window frame 1 located between the jambs 2 and 3 of a window opening. In the structure shown in Fig. 1 the sashes 4 and 5 are mounted to slide between the stiles 6 and 7 of the frame, and are rovided with tongues extending from the si es thereof to slide in suitable grooves in the stiles of the window frame.

Since the stiles of the window frame are identical in construction, only one of them will be described in detail, and the same reference numerals will be used to designate corresponding parts of both stiles; In Fig. 1, the stile 6 is shown as formed of a casing 8 bent tosubstantially U-shape to form a weight receiving casing in which the weights 9 and 10 of the upper sash 4 and lower sash 5 are mounted to reciprocate.

In order .to separate the weights 9 and 10, the casing 8 is rovided with a suitable partition 11 exten ing lengthwise of the center of said casing. The casing 8 is bent on the outer side thereof to form a wall 12, and this wall 12 is return bent as at 13 to form a U- shaped recess 14 having one leg thereof joined-to the outer finished casing 15.-

The inner side'of the casin 8' is bent toform an inner wall 16 which is return bent to form-a 'U-shaped recess 17ha'ving one leg thereof, joined to. the inner. finished. casing 18.

From inspection of Fig. 1 it will be seen that a single sheet of metal is bent suitably to I form a casing adapted to enclose the counterbalancing weights 9 and 10 of the sashes 4 and 5, and is also return bent to form the in side and outside casings 15 and 18 of thewindow frame. a

As so far described the casing-8 is adapted to enclose the weights 9 and 10 on three sides only. In order to provide slide members for the sashes 4 and 5, it is necessary to provide a base which will not only enclose the sash weights, but will also form a support for the sash and parting beads of the window frame.

In order to receive and hold a closing plate for the casing 8, the U-shaped recesses 14 and 17 have spot-welded thereto the L-shaped strips 19 and 20, respectively, which terminate in flanges 21 and 22 extending toward each other and forming with the walls 12 and 16, respectively, the channel recesses 23 and 24.

The closure plate for the casing 8 is composed of two sections 25 and 26. The section 25 has one edge thereof seated in the recess 24 and adjacent its other edge is shaped to provide a groove 27, a recess 28 and a rabbet 29. The other section 26 has one edge thereof seated in the recess 23, and is bent at its other edge to form a rectangular corner 30 which fits snugly into the rabbet 29, and to form a substantially U-shaped support 31 having the free end thereof seated in the groove 27.

To form the outer sash bead of the window frame, a sheet of metal 32 is bent so as to form an outer wall 33 having the inside thereof in contact with the strip 19 and having its edge seated in the U-shaped recess 14, with its other edge shaped and bent to contact with the face of the section 26.

The sheet of metal 32 is secured to the section 26 by means of the screw 33 passing through an aperture 34 in the sheet 32, and having its ends screwthreaded into a boss 35 formed in the section 26. From the drawing it will be apparent that this construction of itself is capable of holding the section 26 properly positioned against the flange 21, and substantially at right angles to the wall 12 of the casing 8.

However, the two sections 25 and 26 are suitably secured to each other near the center of the stile 6 b means of a bolt 35 having the shank thereo passing freely through the U-shaped support 31 to engage a nut 36 seated in the recess 28.

The inner sash bead 37 is formed of a sheet of metal bent to have along leg thereof seat in the U-shaped recess 17, and to extend substantiall parallel with the section 25 and spaced therefrom to be secured thereto by a bolt 38 which passes freely through an aperture 35 and is screwthreaded into a boss 40 formed on the section 25.

The free end of the sheet 37 which forms the inner sash bead is bent inwardly to contact with the face of section 25 and forms a proper support for the sash head when secured by t e bolt 38.

The inner sash head 37 is provided with a lengthwise roove 41 which is ada ted to receive slidabl y the end 42 of the sti ening rod of the shade 43 (see also Fig. 2) suitably rfnounted in the hollow head of the window rame.

The sash beads 32 and 37 have adjacent ends 44 and 45 bent inwardly, toward the sections 26 and 25, respectively, for a short distance at substantially right angles to said sections, in order to provide side walls of grooves 46 and 47 adapted to receive slidably the tongues 48 and 49 extending laterally from the sashes 4 and 5, respectively.

In order to provide contact walls for the other sides of the tongues 48 and 49, a U- shaped plate 50 is bolted by means of a bolt 35. The plate 50 forms, in effect, the parting bead between the sashes 4 and 5, and its legs 51 and 52 are extended toward the sections 25 and 26 only for a short distance in order to avoid unnecessary binding or restriction in the sliding movements of the tongues 48 and 49.

The tongues 48 and 49 are provided with weather-strips 53 and 54, each of which is bowed throughout its length, and is suitably secured to the tongues 48 and 49 to slide with the sashes with yielding friction-fit between the walls of the grooves separating the opposite side of the parting from the adjacent side of the sash beads.

The shade 43, above referred to,.is of the spring roller type, and is suitably mounted in any desired way'in the brackets 55 and 56,

formed as extensions of the pulley sheaves 57 and 58 over which the chain, connecting the sashes to their counter-balancing weights, are adapted to move.

The pulley sheaves 57 and 58 are suitably secured to the top plate 59 of the head 60 of the window frame 1. The head 60 is formed with a slot 61 through which the shade 43 is adapted to move as it rolls on or off the shade roller 62.

As previously stated the stiles of the window frame are identical in construction. Whenever it becomes necessary to position one of these window frames in a finished window opening, I have provided each inner casing of the wmdow frame with a sliding wedge plate 63, adapted to slide lengthwise and laterally on the inner casing to close the "openor more inclined s ots 66 t rough which extends a pin 67 secured at one end to the wall 16 of the casing 8,- and havin a head 68 extending over opposite edges 0 the slot 66 to hold the plate 63 longitudinal and lateral slid.- ing contact with the wall 16. v

The wedging operation of the plate 16 will be obvious from inspection of Figs. 1 and 6;

weaves and it is obvious that the plate 63 must be somewhat shorter than the stiles of the frame in order that the plate 63 may be raised on the pins 67, and thereby drawn inwardly toward the center of the window-frame. Preferably the pin 67 should be made in two parts screwthreaded to each other asshown in the drawing and the head 68 should be provided with a slot 69 in, order that the head may be screwed into close contact with the plate 63 to clamp it securely in looking position against the face of the wall 16 of the casing 8. Any screw of the type commonly used to secure the handle of a saw to the blade thereof will be found useful for this purpose.

The modification shown in Figs. 8 to 12,

inclusive is substantially the same as that shown in Fig. 1, sofar as the construction of the sash bead and parting bead of the window frame are concerned. In this modification each stile is formed of a rectangular casing 70 of sheet metal bent to form the sides 71 and 7 2 which, in turn, are inwardly bent to form the rectangular flanges 73 and 74, respectively. Spotwelded in the recesses of the flange 74 are the flange members 75 and 7 6, respectively, which are shaped to form the U-shaped seats 77 and 78 for the ends 79 and 80 of the sash beads 81 and 82.

The flange members 75 and 7 6 have their free edges turned in toward each other to form flanges 83 and 84, forming with the rectangular flanges 73 and 74, the recesses 85 and 86. 1

In this modification the sections 87 and 88 form the stile of the window frame and close 'the casing 70 in which the counterbalancing'weights are adapted to move. lFhe sections 87 and 88 have their free ends bent 7 other to be secured together by a bolt 91 passing freely through suit-able'aperture's provided therefor. The opposite edges of the sections 87 and 88 seat in the recesses and 86, and are adapted to be pulled into tight contact with the flanges 83 and 84 by means of the bolts 89 and 90 which secure the sash beads to the sections 87 and88, respectively.

The sashes 92 and 93 have tongues 94 and 95 projecting laterally from the edges thereof into sliding contact with the side walls of the grooves formed between the sash beads and the parting strips.

This form of the invention lends itself admirably to the use of weather-strips of spring metal which are suitably bent to engage the opposite sides of the tongues 94 and 95, and are adapted tobe secured between the sec-= tions 87 and 88 and the sash beads by the same bolts 89 and 90' which secure the sash beads to their respective sections.

As shown-particularly in Fig. 8 the tongues 94 and 95 of the sashes 92 and 93 are separated from each other by the U-shaped plate 96 which is secured to the upstanding portions 89 and 90 of the sections 87 and 88, and forms the parting beads which separate the tongues 94 and 95 from each other. In order to form weather-stripping to separate the tongues 94 and 95 yieldingly from each other a plate of springy material 97 is bent around the plate 96 and is suitably secured thereto to provide sides 98 and 99 slidable against the adjacent side walls of the tongues 94 and 95.

llhe Weather-stripping in yielding contact with the other sides of the tongues 94 and 95 is formed by a plate 100 of springy material which is bent to have a flange 101 gripped between the sash bead 81 and the section 87, the other edge of the plate 100 being suitably bent around the corners of the sash beads 81 and 82 to contact yieldingly with thesides of the tongues 94 or 95, as the case may be.

What I claim is:

1. In a sheet metal window frame of the sliding sash type, a hollow jamb having a back and side casings formed in one piece, a stile extending between said casings and formed of two strips having their adjacent edges joined and shaped to form a parting strip, means for releasably securing the opposite edges of said stile to said casings, and a sash bead having one edge spaced from said parting strip and secured'to said stile and one of said casings.

2. In a sheet metal window frame of the sliding sash type, a hollow jamb having a' back and side casings formed in one piece, a stile extending between said casings and formed of two strips having their adjacent edges joined and shaped to form a parting strip, means for releasably securing the opposite edges of said stile to said casings, and sash beads mounted on said stile on opposite sides of said parting strip and spaced therefrom to form guide grooves for sashes.

3. In a sheet metal window frame of the sliding sash type, a hollow jamb having a back and side casings formed in one piece, a stile extending between said casings and formed of two strips having theiradjacent edges joined and shaped to form a parting strip, a channel member secured to said parting strip and having the flanges thereof spaced from the sidesof said strip and extending toward said stile, sash beads mounted on said stile and having their adjacent edges spaced from the flanges on said channel member to form guide grooves for sashes, and

means for securing said sash beads to said stile.

4. In a sheet metal window frame of the sliding sash type, a hollow jamb having a back and side casings formed in' one piece, a stile extending between said casings and formed of two strips having their adjacent ed es joined and shaped to form a parting strip, a channel member secured to said parts ing strip and having the flanges thereof spaced from the sides of said strip and extending toward said stile, sash beads mounted on said stile and having their adjacent edgesspaced from the flanges on said channel member to form guide grooves for sashes and having their outer sides extending along said casings, and means for securing said beads to said stile and casings.

5. In a sheet metal window frame of the sliding sash type, a hollow jamb having a back and side casings formed in one piece,

astile extending between said casin s and formed of two strips having their adjacent edges joined and shaped to form a parting strip, a channel member s'ecured to said parting strip and having the flanges thereof spaced from the sides of said strip and extending toward said stile, sash beads mounted on said stile and having their adjacent edges spaced from the flanges on said channel member to form guide grooves for -sashes, means for securing said sash beads to said stile, a spring weather-strip secured by said member to said parting strip and extending around the flanges of said member, and weatherstrips havin theirJedges' secured by sash beads to sai stile and extending along the sides of said sash beads.

6. In a sheet metal window frame of the sliding sash type, a jamb having a stile detachably connected to the side casings thereof and shaped to form a parting strip between said casings, sash beads detachably mounted on said stile and spaced from said parting strip to form guide grooves, and sprin metallic weather-strips lining each side 0 said I grooves.

7. In a sheet metal window frame, a hollow j amb having the back and side casings thereof formed in one piece and bent to form U- shaped recesses on theoutside ofsaid casings, a stile extending between the front edges of said casings, sash beads mounted on said stile and having the outer sides thereof extending into said U-shaped recesses, and

means for securing said sash beads in position on said stile and for securing said stile to said casings. a

8. In a sheet'metal window frame, a hollow jamb having the back and side casings thereof formed in one piece, a stile extending between the edges of said casings, sash beads mounted on said stile and having their outer sides part1 overlapping said casings, and

means for ocking saidstile to said casings and for locking said sash beads to said stile and casings.

In testimonywhereof I aflix my signature.

GEORGE W. LANCASTER. 

